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Leptomeningeal carcinomatosis (LM) is an infrequent yet morbid and often fatal complication of non–small cell lung cancer (NSCLC). Management of LM is multimodal, often involving systemic chemotherapy, radiotherapy, and a variety of symptom management maneuvers to address elevated intracranial pressure, pain, and mood changes that can accompany the disease. It is increasingly recognized that tumors with actionable mutations in NSCLC, including epidermal growth factor receptor (EGFR) mutations and anaplastic lymphoma kinase (ALK) translocations, respond well to systemic therapy with tyrosine kinase inhibitors yet often progress in the central nervous system. More information is needed regarding the natural history and optimal management of LM in specific molecular subtypes of NSCLC. This case report summarizes the management of a patient with ALK-positive NSCLC who developed LM while on targeted treatment with crizotinib within the context of current NCCN Clinical Practice Guidelines in Oncology and recently published studies.

Background: The development of oral chemotherapies (OC) have transformed cancer care for millions of patients. Most patients with brain tumors have temozolomide (TMZ) delivered to their home. While this has improved the patient experience, it presents significant challenges to safety of prescription, administration, and side effect monitoring. While there are guidelines for documentation, there is not a best practices system for managing OC. This project identified areas of latent errors and implemented a standardized process for OC management. Methods: After review of the literature, we developed a process map for our institution’s practice and performed hazard analysis. We then evaluated the process at 3 other neuro-oncology practices. Based on these evaluations, changes were implemented at several stages (). Objective binary measures that could be recorded for every TMZ prescription were collected by chart review of the 6 months prior to process change. These measures were monitored every 2 weeks after process change implementation using run charts. A baseline process mean was calculated for each measure from the 6 months before program implementation. Successful change implementation was defined as 7 consecutive 2-week averages that were continually on one side of the process mean. Results: At the time of this abstract submission, we had successfully reduced refills for OC and increased documentation of dose calculation and dose ordered. There is improvement in independent dose calculation by 2 providers and dedicated chemotherapy teaching visits; however, these have not yet reached criteria for process change. Additionally, oral chemotherapy order sets were created in the electronic medical records system and an on-site specialty pharmacy was added as another safety measure in OC management. Conclusions: This project used published studies and multi-institutional process mapping and hazard analysis to implement a standardized ordering of TMZ for patients with brain tumors. This process can be implemented for OC management in other oncology practices.

For many years, the diagnosis and classification of gliomas have been based on histology. Although studies including large populations of patients demonstrated the prognostic value of histologic phenotype, variability in outcomes within histologic groups limited the utility of this system. Nonetheless, histology was the only proven and widely accessible tool available at the time, thus it was used for clinical trial entry criteria, and therefore determined the recommended treatment options. Research to identify molecular changes that underlie glioma progression has led to the discovery of molecular features that have greater diagnostic and prognostic value than histology. Analyses of these molecular markers across populations from randomized clinical trials have shown that some of these markers are also predictive of response to specific types of treatment, which has prompted significant changes to the recommended treatment options for grade III (anaplastic) gliomas.

The NCCN Guidelines for Central Nervous System (CNS) Cancers focus on management of adult CNS cancers ranging from noninvasive and surgically curable pilocytic astrocytomas to metastatic brain disease. The involvement of an interdisciplinary team, including neurosurgeons, radiation therapists, oncologists, neurologists, and neuroradiologists, is a key factor in the appropriate management of CNS cancers. Integrated histopathologic and molecular characterization of brain tumors such as gliomas should be standard practice. This article describes NCCN Guidelines recommendations for WHO grade I, II, III, and IV gliomas. Treatment of brain metastases, the most common intracranial tumors in adults, is also described.

The NCCN Guidelines for Central Nervous System (CNS) Cancers focus on management of the following adult CNS cancers: glioma (WHO grade 1, WHO grade 2–3 oligodendroglioma [1p19q codeleted, IDH-mutant], WHO grade 2–4 IDH-mutant astrocytoma, WHO grade 4 glioblastoma), intracranial and spinal ependymomas, medulloblastoma, limited and extensive brain metastases, leptomeningeal metastases, non–AIDS-related primary CNS lymphomas, metastatic spine tumors, meningiomas, and primary spinal cord tumors. The information contained in the algorithms and principles of management sections in the NCCN Guidelines for CNS Cancers are designed to help clinicians navigate through the complex management of patients with CNS tumors. Several important principles guide surgical management and treatment with radiotherapy and systemic therapy for adults with brain tumors. The NCCN CNS Cancers Panel meets at least annually to review comments from reviewers within their institutions, examine relevant new data from publications and abstracts, and reevaluate and update their recommendations. These NCCN Guidelines Insights summarize the panel’s most recent recommendations regarding molecular profiling of gliomas.